Is there a function in R which performs stepwise estimation in ways similar to SAS/STATA (i.e., allows the analyst to specify the significance levels for removal/addition of terms).
I've been asked to evaluate two final models: one resulting from a backwards selection in R (stepAIC) and one resulting from a backwards selection using PROC LOGISTIC in SAS. The final terms are slightly different and I'm trying to understand the differences between the two packages (approaches) so I can explain why the final terms might be different. Thanks for your help. Marc Marc W. Zodet, MS Health Statistician Agency for Healthcare Research and Quality E-mail: <mailto:[EMAIL PROTECTED]> [EMAIL PROTECTED] [[alternative HTML version deleted]] ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
